US7507333B2 - Method of and apparatus for cleaning runoff water - Google Patents
Method of and apparatus for cleaning runoff water Download PDFInfo
- Publication number
- US7507333B2 US7507333B2 US10/966,923 US96692304A US7507333B2 US 7507333 B2 US7507333 B2 US 7507333B2 US 96692304 A US96692304 A US 96692304A US 7507333 B2 US7507333 B2 US 7507333B2
- Authority
- US
- United States
- Prior art keywords
- water
- chamber
- wall
- vortex chamber
- contaminants
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0027—Floating sedimentation devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0042—Baffles or guide plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0087—Settling tanks provided with means for ensuring a special flow pattern, e.g. even inflow or outflow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/265—Separation of sediment aided by centrifugal force or centripetal force by using a vortex inducer or vortex guide, e.g. coil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2221/00—Applications of separation devices
- B01D2221/12—Separation devices for treating rain or storm water
Definitions
- the invention was developed for use in stormwater drainage systems, and combined sewer systems (some older US cities have combined sanitary and stormwater sewers). These sewers are designed and constructed to convey water from a developed area into natural receiving water or other destination. When storm sewers were first constructed, the goal was to remove the water from the developed area and convey it into the receiving water as quickly as possible. At that time, no attention was paid to the potential for pollution from stormwater runoff.
- stormwater runoff has been identified as a significant source of pollution in waters of the United States.
- the stormwater runoff from a developed area can contain oils and other fluids from leaking cars, zinc and heavy metals from brake pads and other sources, nutrients from fertilizers and air pollution, sediments, and garbage and other debris. All of these constituents impact the receiving water that the stormwater drainage system discharges to.
- CSOs combined-sewer overflows
- BaySaver's patented physical separator U.S. Pat. Nos. 5,746,911 and 6,264,835
- These systems while effective at low flow rates, often include a bypass structure that allows high flows to pass through or around the system untreated.
- the runoff during intense storms usually has lower concentration of pollutants like sediments, nutrients, and oils, there is often a significant amount of trash, debris, and other floatable material entrained in the water.
- the present invention is intended to remove these constituents from stormwater or CSO runoff and retain them in a structure so that they can be easily removed during routine maintenance.
- a vortex chamber is used to swirl runoff water to separate the contaminants from the water.
- Such a vortex chamber has a conventional input for feeding the runoff water under sufficient head to produce the swirl.
- a settling tank is at a lower level than the vortex chamber and receives the water and the heavier-than-water contaminants.
- the vortex chamber is new in that it has a skirt portion extending downwardly from the inlet pipe. This skirt portion will. have water in it continuously and will, therefore, receive and hold the lighter-than-water contaminants until they are removed by a regular cleaning.
- the skirt portion has a funnel in it which causes the water from the swirl to speed up and then expand when it leaves the funnel and passes into the settling chamber.
- the aforesaid increase in speed followed by an expansion further tends to separate the contaminants from the water.
- a shelf in the settling chamber acts as means for preventing the swirling water from resuspending any accumulated material in the settling chamber.
- the head of water in the skirt forces the water in the settling chamber to rise along the outer sidewall of the skirt. There it passes through permeable barriers (which may be screens) to a clean water outlet.
- the permeable barriers which clean the water have a series of louvers projecting from the permeable barriers at acute angles to the direction of flow. This enable the louvers to prevent contaminants from blocking the permeable barrier.
- FIG. 1 is a plan view of the preferred form of the invention.
- FIG. 2 is a cross sectional view of the preferred form of the invention taken along line A-A as shown in FIG. 1 .
- FIG. 3 is a cross sectional view of the preferred form of the invention taken along line B-B as shown in FIG. 1 .
- FIGS. 1 , 2 , and 3 show the preferred form the invention.
- FIG. 1 is a plan view of the invention.
- FIG. 2 is a cross sectional view taken along line A-A as indicated in FIG. 1 and
- FIG. 3 is a cross sectional view taken along line B-B as indicated in FIG. 1 .
- the invention is housed in a container, comprising a floor 25 , a top 21 with an opening 22 for access, and side walls 11 .
- a fluid carrying contaminants to be separated is introduced to the system through inlet 12 , which penetrates side wall 11 and conveys the fluid to pipe 13 .
- Inlet means 12 conveys a fluid that has sufficient upstream head to force the fluid through the system, as indicated by the vertical section of inlet means 12 in FIG. 2 .
- the fluid enters vortex chamber 14 , tangentially, as commonly done, where the swirling action helps to separate the contaminants from the fluid.
- Floating contaminants are stored in the vortex chamber 14 , trapped by the roof 21 of the vortex chamber.
- In the roof 21 of the vortex chamber is a sealed opening 22 that can be removed to provide access to the accumulated contaminants within the chamber.
- the cylindrical sidewall, of vortex chamber 14 extends considerably below the lowest part of inlet pipe 12 , to form a skirt portion which in turn forms a storage chamber for lighter-than-water contaminants.
- oil or other low density contaminants are separated from the water by the swirling action, such low-density contaminants remain on the surface of the water that has moved downward from the space where the swirl occurred.
- These light-weight contaminants remain on the surface of the water in tank 11 , until the system is given its periodic cleaning at which time such contaminants are removed from the lower part of the vortex chamber 14 through opening 22 in the top of that chamber.
- the inclined walls 27 maintain the swirling flow path while increasing the velocity of the fluid through this part of the invention.
- the fluid loses a significant amount of energy because of the sudden expansion. This energy loss helps to settle contaminants that are denser than the fluid to the floor 25 of the structure.
- a shelf 29 prevents the swirling currents from resuspending the accumulated material, and the material is retained in the structure until it is removed.
- Each of the one or more permeable barrier(s) is a plate or similar structure containing a plurality of openings intended to allow the fluid to pass through the permeable barrier (screen) while trapping contaminants within the confines of the settling chamber 26 .
- the openings in permeable barrier ( 15 ) can be sized to trap particular contaminants, and can be designed in such a way as to not impede the flow. This is accomplished through the use of louvers angled against the direction of flow, as shown in FIG. 9 of U.S. Pat. No. 4.885,090.
- permeable barrier 15 may allow for enhanced pollutant removal by the present invention.
- Permeable barrier(s) 15 are placed within the unit in a horizontal fashion, parallel with the unit floor and allowing fluid to flow vertically through the barrier.
- the size of the openings may or may not vary with the different barriers. This variability allows the present invention to be designed for specific instances in which particular contaminants are expected and desired to be removed.
- outlet means 16 which conveys the treated effluent to its destination.
- the lowest point of outlet means 16 is at the same elevation or lower than the lowest point of inlet means 12 . Because of this relationship, the present invention functions under gravity flow, and requires no additional sources of energy to operate. This relationship also prevents the present invention from causing a backup in inlet means 12 . Said backup could potentially cause problems with upstream structures, and is a generally undesirable feature of such systems.
- the influent fluid enters the present invention through inlet means 12 , is conveyed into vortex chamber 14 by conveyance means 13 , and enters settling chamber 26 from vortex chamber 14 as it does under normal flow conditions. If the plurality of openings in permeable barrier(s) 15 does not allow the full flow of the fluid to pass through to the outlet means 16 , the fluid will be forced through the overflow 17 . The fluid enters overflow means 17 from a point below the bottom of the lowest permeable barrier(s) 15 , and is forced upward through overflow means 17 by hydrostatic pressure.
- Openings 24 in the top of the unit itself and 22 in the top of the vortex chamber allow access to the trapped contaminants. This access can be used for environmental monitoring, process monitoring, or maintenance purposes. In addition to the floatable storage within the vortex chamber, these openings also allow access to the settling chamber to remove any pollutants that have settled to the floor of the device.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sewage (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/966,923 US7507333B2 (en) | 2003-10-25 | 2004-10-15 | Method of and apparatus for cleaning runoff water |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US51417603P | 2003-10-25 | 2003-10-25 | |
US10/966,923 US7507333B2 (en) | 2003-10-25 | 2004-10-15 | Method of and apparatus for cleaning runoff water |
Publications (2)
Publication Number | Publication Date |
---|---|
US20050087502A1 US20050087502A1 (en) | 2005-04-28 |
US7507333B2 true US7507333B2 (en) | 2009-03-24 |
Family
ID=34520177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/966,923 Expired - Fee Related US7507333B2 (en) | 2003-10-25 | 2004-10-15 | Method of and apparatus for cleaning runoff water |
Country Status (2)
Country | Link |
---|---|
US (1) | US7507333B2 (en) |
CA (1) | CA2485696A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090045128A1 (en) * | 2007-08-15 | 2009-02-19 | Christopher Adam Murray | Filter For Removing Sediment From Water |
US8221618B2 (en) * | 2007-08-15 | 2012-07-17 | Monteco Ltd. | Filter for removing sediment from water |
US20120195686A1 (en) * | 2011-02-01 | 2012-08-02 | Grant Michael Hardgrave | Drywell retrofit sump insert for storm water treatment |
CN102630630A (en) * | 2011-12-27 | 2012-08-15 | 张家港市君之旺水族科技有限公司 | Water and dirt separating device |
US8287726B2 (en) | 2007-08-15 | 2012-10-16 | Monteco Ltd | Filter for removing sediment from water |
US9827510B2 (en) | 2014-12-08 | 2017-11-28 | Contech Engineered Solutions LLC | Hydrodynamic separator |
US10150063B2 (en) | 2016-12-29 | 2018-12-11 | Contech Engineered Solutions LLC | Hydrodynamic separator |
US20200023382A1 (en) * | 2018-07-23 | 2020-01-23 | Contech Engineered Solutions LLC | Hydrodynamic separator |
US10710907B2 (en) | 2018-01-10 | 2020-07-14 | Hydroworks, Llc | Hydrodynamic separators, assemblies and methods for storm water treatment |
US10941557B1 (en) | 2020-04-14 | 2021-03-09 | S & M Precast, Inc. | Water quality unit for flow-through manhole |
US11167224B2 (en) * | 2019-03-07 | 2021-11-09 | 3P Technik Filtersysteme Gmbh | Sedimentation device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2008014895A (en) * | 2006-05-22 | 2009-01-29 | Contech Stormwater Solutions I | Apparatus for separating particulate from stormwater. |
DE102008039497A1 (en) * | 2008-08-23 | 2010-02-25 | Wisy Ag Haustechniksysteme, Filtertechnik | Cistern with a rainwater filter in the inlet and a filter housing for a rainwater filter |
CN106241948A (en) * | 2016-09-28 | 2016-12-21 | 吉林省中泰环境工程有限责任公司 | A kind of domestic sewage in rural areas pollution cutting device of applicable north water deficit area |
CN107042025B (en) * | 2016-12-30 | 2022-07-22 | 广东新环机电装备制造有限公司 | Dirt and sand removing machine |
CN111939608A (en) * | 2020-08-10 | 2020-11-17 | 杨国庆 | Sewage treatment plant is used in weaving based on sewage flows fast |
CN116267781A (en) * | 2023-05-05 | 2023-06-23 | 蒙城县京徽蒙农业科技发展有限公司 | Bottom cleaning and decontaminating device and method for aquaculture pond |
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US2076935A (en) * | 1934-08-03 | 1937-04-13 | Michiana Products Corp | Oil filter |
US3487931A (en) * | 1968-03-06 | 1970-01-06 | Universal Oil Prod Co | Filter unit with removable selfcleaning screen section |
US4885090A (en) * | 1987-04-16 | 1989-12-05 | The Black Clawson Company | Screen plates |
US4933094A (en) | 1988-09-30 | 1990-06-12 | Conoco Specialty Products, Inc. | Method and apparatus for separating liquid components from a liquid mixture |
US4995989A (en) | 1988-02-19 | 1991-02-26 | Conoco Specialty Products Inc. | Separating liquids |
US5037558A (en) | 1987-06-10 | 1991-08-06 | Conoco Specialty Products Inc. | Liquid separator |
US5147556A (en) * | 1988-11-17 | 1992-09-15 | Supaflo Pty. Limited | Thickener |
US5407584A (en) * | 1990-09-28 | 1995-04-18 | Broussard, Sr.; Paul C. | Water clarification method |
US5522999A (en) | 1990-09-28 | 1996-06-04 | Broussard; Paul C. | Water clarification method |
US5531888A (en) | 1993-07-28 | 1996-07-02 | Vsb Vogelsberger Umwelttechnischer Anlagenbau Gmbh | Arrangement for separation of coarse matter and/or bulky solids in rainwater relief structures |
US5565101A (en) | 1995-02-15 | 1996-10-15 | Spokane Industries, Inc. | Oil and water separator |
US5746911A (en) * | 1997-01-13 | 1998-05-05 | Pank; Thomas E. | Apparatus for separating a light from a heavy fluid |
US5779888A (en) | 1995-09-04 | 1998-07-14 | Baramy Engineering Pty. Ltd. | Filtering apparatus |
US5788848A (en) | 1994-06-17 | 1998-08-04 | Cds Tech Ltd | Apparatus and methods for separating solids from flowing liquids or gases |
US5814216A (en) | 1997-02-07 | 1998-09-29 | John Meunier Inc. | Waste water contaminant segregating unit for sewer conduits |
US6241881B1 (en) | 1997-11-21 | 2001-06-05 | University Of South Australia | Pollution separator and filtration apparatus |
US6264835B1 (en) * | 1999-01-29 | 2001-07-24 | Thomas E Pank | Apparatus for separating a light from a heavy fluid |
US6730222B1 (en) * | 1999-04-15 | 2004-05-04 | Hydro International Plc | Hydrodynamic vortex separator |
US7077957B2 (en) * | 2002-03-25 | 2006-07-18 | Son Screen Pty Ltd | Overflow screening device |
-
2004
- 2004-10-15 US US10/966,923 patent/US7507333B2/en not_active Expired - Fee Related
- 2004-10-20 CA CA002485696A patent/CA2485696A1/en not_active Abandoned
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US2076935A (en) * | 1934-08-03 | 1937-04-13 | Michiana Products Corp | Oil filter |
US3487931A (en) * | 1968-03-06 | 1970-01-06 | Universal Oil Prod Co | Filter unit with removable selfcleaning screen section |
US4885090A (en) * | 1987-04-16 | 1989-12-05 | The Black Clawson Company | Screen plates |
US5037558A (en) | 1987-06-10 | 1991-08-06 | Conoco Specialty Products Inc. | Liquid separator |
US4995989A (en) | 1988-02-19 | 1991-02-26 | Conoco Specialty Products Inc. | Separating liquids |
US4933094A (en) | 1988-09-30 | 1990-06-12 | Conoco Specialty Products, Inc. | Method and apparatus for separating liquid components from a liquid mixture |
US5147556A (en) * | 1988-11-17 | 1992-09-15 | Supaflo Pty. Limited | Thickener |
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US5565101A (en) | 1995-02-15 | 1996-10-15 | Spokane Industries, Inc. | Oil and water separator |
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US7077957B2 (en) * | 2002-03-25 | 2006-07-18 | Son Screen Pty Ltd | Overflow screening device |
Non-Patent Citations (1)
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NJCAT Technology Verification CDS Technologies Inc. Jun. 2003. |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8123935B2 (en) * | 2007-08-15 | 2012-02-28 | Monteco Ltd. | Filter for removing sediment from water |
US8221618B2 (en) * | 2007-08-15 | 2012-07-17 | Monteco Ltd. | Filter for removing sediment from water |
US8287726B2 (en) | 2007-08-15 | 2012-10-16 | Monteco Ltd | Filter for removing sediment from water |
US20090045128A1 (en) * | 2007-08-15 | 2009-02-19 | Christopher Adam Murray | Filter For Removing Sediment From Water |
US10626592B2 (en) | 2008-01-16 | 2020-04-21 | Contech Engineered Solutions LLC | Filter for removing sediment from water |
US20120195686A1 (en) * | 2011-02-01 | 2012-08-02 | Grant Michael Hardgrave | Drywell retrofit sump insert for storm water treatment |
CN102630630A (en) * | 2011-12-27 | 2012-08-15 | 张家港市君之旺水族科技有限公司 | Water and dirt separating device |
US9827510B2 (en) | 2014-12-08 | 2017-11-28 | Contech Engineered Solutions LLC | Hydrodynamic separator |
US10150063B2 (en) | 2016-12-29 | 2018-12-11 | Contech Engineered Solutions LLC | Hydrodynamic separator |
US10710907B2 (en) | 2018-01-10 | 2020-07-14 | Hydroworks, Llc | Hydrodynamic separators, assemblies and methods for storm water treatment |
US20200023382A1 (en) * | 2018-07-23 | 2020-01-23 | Contech Engineered Solutions LLC | Hydrodynamic separator |
US10953412B2 (en) | 2018-07-23 | 2021-03-23 | Contech Engineered Solutions LLC | Hydrodynamic separator |
US11167224B2 (en) * | 2019-03-07 | 2021-11-09 | 3P Technik Filtersysteme Gmbh | Sedimentation device |
US10941557B1 (en) | 2020-04-14 | 2021-03-09 | S & M Precast, Inc. | Water quality unit for flow-through manhole |
US11505936B1 (en) | 2020-04-14 | 2022-11-22 | S & M Precast, Inc. | Water quality unit for flow-through manhole |
US11834821B1 (en) | 2020-04-14 | 2023-12-05 | S & M Precast, Inc. | Water quality unit for flow-through manhole |
Also Published As
Publication number | Publication date |
---|---|
CA2485696A1 (en) | 2005-04-25 |
US20050087502A1 (en) | 2005-04-28 |
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